SqlServerPropertyBuilderExtensions.HasValueGenerationStrategy 方法
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
多載
HasValueGenerationStrategy(IConventionPropertyBuilder, Nullable<SqlServerValueGenerationStrategy>, Boolean) |
以SQL Server為目標時,設定索引鍵屬性的值產生策略。 |
HasValueGenerationStrategy(IConventionPropertyBuilder, Nullable<SqlServerValueGenerationStrategy>, StoreObjectIdentifier, Boolean) |
針對特定資料表的目標SQL Server時,設定索引鍵屬性的值產生策略。 |
HasValueGenerationStrategy(IConventionPropertyBuilder, Nullable<SqlServerValueGenerationStrategy>, Boolean)
以SQL Server為目標時,設定索引鍵屬性的值產生策略。
public static Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder HasValueGenerationStrategy (this Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder propertyBuilder, Microsoft.EntityFrameworkCore.Metadata.SqlServerValueGenerationStrategy? valueGenerationStrategy, bool fromDataAnnotation = false);
public static Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder? HasValueGenerationStrategy (this Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder propertyBuilder, Microsoft.EntityFrameworkCore.Metadata.SqlServerValueGenerationStrategy? valueGenerationStrategy, bool fromDataAnnotation = false);
static member HasValueGenerationStrategy : Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder * Nullable<Microsoft.EntityFrameworkCore.Metadata.SqlServerValueGenerationStrategy> * bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder
<Extension()>
Public Function HasValueGenerationStrategy (propertyBuilder As IConventionPropertyBuilder, valueGenerationStrategy As Nullable(Of SqlServerValueGenerationStrategy), Optional fromDataAnnotation As Boolean = false) As IConventionPropertyBuilder
參數
- propertyBuilder
- IConventionPropertyBuilder
要設定之屬性的產生器。
- valueGenerationStrategy
- Nullable<SqlServerValueGenerationStrategy>
價值產生策略。
- fromDataAnnotation
- Boolean
指出是否已使用資料批註指定組態。
傳回
如果已套用組態,則為相同的產生器實例, null
否則為 。
備註
如需詳細資訊和範例,請參閱使用 EF Core建立實體類型和關聯性的模型化,以及使用 EF Core 存取SQL Server和Azure SQL資料庫。
適用於
HasValueGenerationStrategy(IConventionPropertyBuilder, Nullable<SqlServerValueGenerationStrategy>, StoreObjectIdentifier, Boolean)
針對特定資料表的目標SQL Server時,設定索引鍵屬性的值產生策略。
public static Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder? HasValueGenerationStrategy (this Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder propertyBuilder, Microsoft.EntityFrameworkCore.Metadata.SqlServerValueGenerationStrategy? valueGenerationStrategy, in Microsoft.EntityFrameworkCore.Metadata.StoreObjectIdentifier storeObject, bool fromDataAnnotation = false);
static member HasValueGenerationStrategy : Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder * Nullable<Microsoft.EntityFrameworkCore.Metadata.SqlServerValueGenerationStrategy> * StoreObjectIdentifier * bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.IConventionPropertyBuilder
<Extension()>
Public Function HasValueGenerationStrategy (propertyBuilder As IConventionPropertyBuilder, valueGenerationStrategy As Nullable(Of SqlServerValueGenerationStrategy), ByRef storeObject As StoreObjectIdentifier, Optional fromDataAnnotation As Boolean = false) As IConventionPropertyBuilder
參數
- propertyBuilder
- IConventionPropertyBuilder
要設定之屬性的產生器。
- valueGenerationStrategy
- Nullable<SqlServerValueGenerationStrategy>
價值產生策略。
- storeObject
- StoreObjectIdentifier
資料表識別碼。
- fromDataAnnotation
- Boolean
指出是否已使用資料批註指定組態。
傳回
如果已套用組態,則為相同的產生器實例, null
否則為 。
備註
如需詳細資訊和範例,請參閱使用 EF Core建立實體類型和關聯性的模型化,以及使用 EF Core 存取SQL Server和Azure SQL資料庫。